The main factor that may weaken the stability of the roof structure is dampness. On its negative impact it is particularly exposed rafter framing, which deform under impact of water. Therefore is important roof protection against getting in  water into its internal structure.

Typically, investors during the construction of the roof attach great importance both for building materials, as well as careful execution. Unfortunately, later very often they forget about the survey, and any minor defects  commission outsource cheaper and often non-professional roofing companies. This is a big mistake,

Van Industrial Metal Master6" #IM1055 Item # Item Name Our Price Qty Weight; IM1055 Van IM1055 Industrial Metal Master6" $3,573.63 Each 259.00 lbs IM1255 Van IM1255 Industrial Metal. Van II Contractor Siding Brake INDUSTRIAL LADDER Item # Item Name Our Price

A very important element that must be considered when the roof is projected, is ventilation, allowing drainage of excess dampness from under the roofing.